Fast-Charging Heat Dissipation Control by Charging Stage
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Solution Overview
Problem
Existing heat dissipation methods in electronic devices during fast charging fail to match heat dissipation power with actual demand, leading to inefficiency and high energy consumption due to temperature mismatches.
Innovation Solution
A method and apparatus that monitor charging current and temperature values to determine charging stages, adjusting the power of a heat dissipation module accordingly to optimize heat dissipation, thereby delaying temperature rise and extending fast charging time while reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If fast charging is performed with strong charging current to reduce charging time, then charging speed is improved, but temperature of the electronic device increases quickly leading to heat dissipation issues
Solution Approach 1:
The heat dissipation module dynamically adjusts its running power based on the determined charging stage. The controller modifies the heat dissipation power in real-time according to the charging current value and temperature value, transitioning between different power levels (first power, second power, third power) to match the actual heat dissipation demand at each charging stage, thereby resolving the contradiction between fast charging speed and temperature control
Solution Approach 2:
The system changes the operating parameters of the heat dissipation module based on charging stage. By monitoring charging current and temperature values, the controller adjusts the running power parameter of the heat dissipation module to appropriate levels for each charging stage, enabling effective temperature management during fast charging while maintaining charging speed
2Temperature
If heat dissipation power is increased to control temperature, then temperature control is improved, but energy consumption increases
Solution Approach 1:
The heat dissipation module operates at different dynamic power levels (first power, second power, third power) corresponding to different charging stages. The controller adjusts the power level based on actual temperature and charging current conditions, avoiding continuous high-power operation and thereby reducing overall energy consumption while maintaining effective temperature control
Solution Approach 2:
The system applies heat dissipation power selectively and partially based on actual demand. During different charging stages, only the necessary heat dissipation power is applied - not always maximum power - which reduces energy consumption while still achieving the required temperature control effect
3Device complexity
If heat dissipation power is mismatched with actual heat dissipation demand, then system complexity is reduced, but heat dissipation efficiency decreases
Solution Approach 1:
The controller implements feedback control by monitoring charging current values and temperature values during charging, determining the charging stage based on this feedback information, and adjusting the heat dissipation module's running power accordingly. This feedback mechanism ensures heat dissipation efficiency is optimized for each charging stage without requiring overly complex system architecture
Solution Approach 2:
The heat dissipation system transitions from static fixed-power operation to dynamic variable-power operation based on charging stage. The controller adjusts the running power of the heat dissipation module to match actual heat dissipation demand at each charging stage, significantly improving heat dissipation efficiency while maintaining reasonable system complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively manages heat dissipation by matching power with charging stages, improving charging efficiency and reducing energy consumption by prolonging fast charging time and preventing temperature thresholds.
Implementation Method 1
dissipating heat of the electronic device
Implementation Method 2
heat dissipation module to work at the determined running power
Data Source
AI summary
A heat dissipation method and apparatus for an electronic device, and a storage medium, are provided. The heat dissipation method for an electronic device includes monitoring a communication message between an electronic device and a charger in a case that the electronic device is in a charging state, where the communication message includes a charging current value and a temperature value of a charging component of the electronic device; determining a charging stage of the electronic device based on the charging current value and the temperature value; determining a running power of a heat dissipation module based on the charging stage of the electronic device; and controlling the heat dissipation module to work at the running power, thereby dissipating heat of the electronic device.